James Charles Luker (born February 4, 1942) is an American politician and lawyer. Born in Little Rock, Arkansas, Luker received his Juris Doctor degree from the University of Arkansas School of Law.
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9af6398c98367c29dcaa7e9884f1de9df32e0a3a4573ddbda388a17b521869. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2879d588-6ae1-437b-9b86-e93df3d8538d.json and https://artists.proofprofile.net/proofs/artist/2879d588-6ae1-437b-9b86-e93df3d8538d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).